Predicted to enable ubiquitin protein ligase binding activity and ubiquitin-protein transferase activity. Acts upstream of or within cerebral cortex radially oriented cell migration; protein ubiquitination; and radial glia guided migration of Purkinje cell. Predicted to be located in several cellular components, including nucleus; plasma membrane; and site of DNA damage. Predicted to be part of Cul5-RING ubiquitin ligase complex and SCF ubiquitin ligase complex. Is expressed in several structures, including brain; eye; genitourinary system; gut; and limb bud. Orthologous to human CUL5 (cullin 5). [provided by Alliance of Genome Resources, Apr 2022]