Predicted to enable ubiquitin protein ligase activity. Predicted to be involved in protein polyubiquitination and ubiquitin-dependent protein catabolic process. Human ortholog(s) of this gene implicated in Kaufman oculocerebrofacial syndrome. Orthologous to human UBE3B (ubiquitin protein ligase E3B). [provided by Alliance of Genome Resources, Apr 2022]