FUNCTION: Cleaves the 2'-5' phosphodiester linkage at the branch point of excised lariat intron RNA and converts them into linear molecules that can be subsequently degraded, thereby facilitating ribonucleotide turnover (PubMed:10982890, PubMed:16232320). Linked to its role in pre-mRNA processing me...
FUNCTION: Cleaves the 2'-5' phosphodiester linkage at the branch point of excised lariat intron RNA and converts them into linear molecules that can be subsequently degraded, thereby facilitating ribonucleotide turnover (PubMed:10982890, PubMed:16232320). Linked to its role in pre-mRNA processing mechanism, may also participate in retrovirus replication via an RNA lariat intermediate in cDNA synthesis and have an antiviral cell-intrinsic defense function in the brainstem (PubMed:16232320, PubMed:29474921). {ECO:0000269|PubMed:10982890, ECO:0000269|PubMed:16232320, ECO:0000269|PubMed:29474921}.
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GO - Biological processes (BP):
mRNA splicing, via spliceosome [GO:0000398]; RNA splicing, via transesterification reactions [GO:0000375]...
mRNA splicing, via spliceosome [GO:0000398]; RNA splicing, via transesterification reactions [GO:0000375]
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GO - Molecular function (MF):
metal ion binding [GO:0046872]; RNA binding [GO:0003723]; RNA lariat debranching enzyme activity [GO:0008419]...
metal ion binding [GO:0046872]; RNA binding [GO:0003723]; RNA lariat debranching enzyme activity [GO:0008419]
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GO - Cellular component (CC):
nucleoplasm [GO:0005654]; nucleus [GO:0005634]...
nucleoplasm [GO:0005654]; nucleus [GO:0005634]
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