Predicted to enable ubiquitin-protein transferase activity. Predicted to be involved in several processes, including Arp2/3 complex-mediated actin nucleation; protein K63-linked ubiquitination; and retrograde transport, endosome to Golgi. Predicted to act upstream of or within positive regulation of actin nucleation. Predicted to be located in endosome. Predicted to be part of retromer complex. Predicted to be active in nucleus. Human ortholog(s) of this gene implicated in Schaaf-Yang syndrome. Orthologous to human MAGEL2 (MAGE family member L2). [provided by Alliance of Genome Resources, Apr 2022]