Enables ubiquitin conjugating enzyme activity. Predicted to be involved in protein K11-linked ubiquitination; protein K48-linked ubiquitination; and protein K63-linked ubiquitination. Predicted to act upstream of or within regulation of growth. Located in nucleus. Orthologous to human UBE2E3 (ubiquitin conjugating enzyme E2 E3). [provided by Alliance of Genome Resources, Apr 2022]