Enables ubiquitin conjugating enzyme activity. Acts upstream of or within several processes, including embryo implantation; prolactin secretion; and suckling behavior. Predicted to be located in cell projection and cytoplasm. Predicted to be active in nucleus. Is expressed in several structures, including 4-cell stage embryo; blastocyst; mammary gland; reproductive system; and spleen. Orthologous to human UBE2Q1 (ubiquitin conjugating enzyme E2 Q1). [provided by Alliance of Genome Resources, Apr 2022]