FUNCTION: Broad specificity glycosidase of the intestinal brush border membrane that hydrolyzes lactose, the main sugar in mammalian milk, to produce D-glucose and D-galactose (PubMed:3929764, PubMed:9762914, PubMed:12594539, PubMed:16400612). The mature protein is composed of two domains that catal...
                        FUNCTION: Broad specificity glycosidase of the intestinal brush border membrane that hydrolyzes lactose, the main sugar in mammalian milk, to produce D-glucose and D-galactose (PubMed:3929764, PubMed:9762914, PubMed:12594539, PubMed:16400612). The mature protein is composed of two domains that catalyze the hydrolysis of beta-glucopyranosides and beta-galactopyranosides, with a preference for hydrophilic aglycones (including lactose and cellobiose) for one domain and hydrophobic aglycones (like phlorizin and glycosylceramides) for the other (PubMed:3929764, PubMed:9762914, PubMed:12594539). {ECO:0000269|PubMed:12594539, ECO:0000269|PubMed:16400612, ECO:0000269|PubMed:3929764, ECO:0000269|PubMed:9762914}.
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                        GO - Biological processes (BP): 
                        cellobiose catabolic process [GO:2000892]; lactose catabolic process [GO:0005990]; quercetin catabolic process [GO:1901733]...
                        cellobiose catabolic process [GO:2000892]; lactose catabolic process [GO:0005990]; quercetin catabolic process [GO:1901733]
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                        GO - Molecular function (MF): 
                        glycosylceramidase activity [GO:0017042]; lactase activity [GO:0000016]; protein homodimerization activity [GO:0042803]...
                        glycosylceramidase activity [GO:0017042]; lactase activity [GO:0000016]; protein homodimerization activity [GO:0042803]
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                        GO - Cellular component (CC): 
                        external side of apical plasma membrane [GO:0098591]; integral component of plasma membrane [GO:0005887]; plasma membrane [GO:0005886]...
                        external side of apical plasma membrane [GO:0098591]; integral component of plasma membrane [GO:0005887]; plasma membrane [GO:0005886]
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