Predicted to enable ubiquitin conjugating enzyme activity and ubiquitin protein ligase activity. Acts upstream of or within proteasome-mediated ubiquitin-dependent protein catabolic process. Predicted to be located in endosome and plasma membrane. Predicted to be active in nucleus. Is expressed in inner cell mass and trophectoderm. Orthologous to human UBE2D3 (ubiquitin conjugating enzyme E2 D3). [provided by Alliance of Genome Resources, Apr 2022]