Predicted to enable cullin family protein binding activity; ubiquitin conjugating enzyme binding activity; and ubiquitin-like protein binding activity. Predicted to be involved in several processes, including positive regulation of protein modification by small protein conjugation or removal; protein neddylation; and regulation of cell growth. Located in nucleus. Is expressed in several structures, including early conceptus; genitourinary system; jaw; nervous system; and thymus primordium. Orthologous to human DCUN1D5 (defective in cullin neddylation 1 domain containing 5). [provided by Alliance of Genome Resources, Apr 2022]