The function of Ensembl gene identifier ENSG00000140153 (WDR20, WD repeat domain 20) is as follows. Regulator of deubiquitinating complexes. Activates deubiquitinating activity of complexes containing USP12 (PubMed:20147737, PubMed:27373336). Anchors at the base of the ubiquitin-contacting loop of USP12 and remotely modulates the catalytic center of the enzyme (PubMed:27373336). Regulates shuttling of the USP12 deubiquitinase complex between the plasma membrane, cytoplasm and nucleus (PubMed:30466959). {ECO:0000269|PubMed:20147737, ECO:0000269|PubMed:27373336, ECO:0000269|PubMed:30466959}.