RNA-binding protein that suppresses transcription of long non-coding RNAs (lncRNAs) (PubMed:33767452, PubMed:33913806). LncRNAs are defined as transcripts more than 200 nucleotides that are not translated into protein (PubMed:33767452, PubMed:33913806). Together with WDR82, part of a transcription termination checkpoint that promotes transcription termination of lncRNAs and their subsequent degradation by the exosome (PubMed:33767452, PubMed:33913806). The transcription termination checkpoint is activated by the inefficiently spliced first exon of lncRNAs (PubMed:33767452).
