Promotes sister chromatid cohesion by enhancing recruitment of CDCA5/sororin to chromatin during S phase and stimulating the anti- WAPL activity of CDCA5 (PubMed:41261216). Associates with the pre-60S ribosome and may be involved in pre-60S ribosome assembly (PubMed:37491604). {ECO:0000269|PubMed:37491604, ECO:0000269|PubMed:41261216}. This is the function of Ensembl gene identifier ENSG00000278615 (C11orf98, chromosome 11 open reading frame 98).