Is predicted to encode a protein with the following domains: G-protein beta WD-40 repeat; WD40/YVTN repeat-like-containing domain superfamily; WD40 repeat; WD domain, G-beta repeat; and WD40-repeat-containing domain superfamily. Is an ortholog of C. elegans cdt-2. In C. elegans, cdt-2 is involved in proteasome-mediated ubiquitin-dependent protein catabolic process.