Is an ortholog of human ARIH1 (ariadne RBR E3 ubiquitin protein ligase 1). Is predicted to have ubiquitin conjugating enzyme binding activity and ubiquitin protein ligase activity. Localizes to the cytoplasm and nucleus. Is expressed in several tissues, including the coelomocyte\; the head\; the muscle cell\; the nervous system\; and the reproductive system.