Enables ubiquitin-protein transferase activity. Predicted to be involved in positive regulation of protein ubiquitination; protein K48-linked ubiquitination; and ubiquitin-dependent protein catabolic process. Predicted to act upstream of or within positive regulation of protein polyubiquitination. Predicted to be located in cytoplasm. Predicted to be part of ubiquitin ligase complex. Predicted to be active in nucleus. Orthologous to human UBE2D1 (ubiquitin conjugating enzyme E2 D1). [provided by Alliance of Genome Resources, Apr 2022]