Predicted to enable mannosyltransferase activity. Predicted to be involved in protein C-linked glycosylation via 2'-alpha-mannosyl-L-tryptophan. Predicted to be located in membrane. Predicted to be integral component of membrane. Predicted to be active in nuclear inner membrane. Is expressed in cerebral cortex. Orthologous to human DPY19L3 (dpy-19 like C-mannosyltransferase 3). [provided by Alliance of Genome Resources, Apr 2022]