Predicted to enable ubiquitin protein ligase activity. Predicted to be involved in anatomical structure development and protein K63-linked ubiquitination. Predicted to act upstream of or within several processes, including animal organ development; negative regulation of protein localization to plasma membrane; and protein autoubiquitination. Orthologous to human HECTD1 (HECT domain E3 ubiquitin protein ligase 1). [provided by Alliance of Genome Resources, Apr 2022]