Predicted to enable ubiquitin protein ligase binding activity and ubiquitin-protein transferase activity. Predicted to contribute to damaged DNA binding activity. Involved in neuron projection development. Located in cytosol and nucleus. Human ortholog(s) of this gene implicated in syndromic X-linked intellectual disability Cabezas type. Orthologous to human CUL4B (cullin 4B). [provided by Alliance of Genome Resources, Apr 2022]