Is predicted to encode a protein with the following domains: Brf1-like TBP-binding domain; Cullin protein, neddylation domain; Winged helix DNA-binding domain superfamily; Cullin-4B; Winged helix-like DNA-binding domain superfamily; Cullin protein neddylation domain; and Brf1, TBP-binding domain. Is an ortholog of C. elegans
cul-4. In C. elegans,
cul-4 is involved in proteasome-mediated ubiquitin-dependent protein catabolic process.