Predicted to enable mannosyltransferase activity. Predicted to be involved in protein C-linked glycosylation via 2'-alpha-mannosyl-L-tryptophan and spermatid development. Predicted to be integral component of membrane. Predicted to be active in nuclear inner membrane. Human ortholog(s) of this gene implicated in spermatogenic failure 9. Orthologous to human DPY19L2 (dpy-19 like 2). [provided by Alliance of Genome Resources, Apr 2022]