Predicted to be located in endoplasmic reticulum. Predicted to be part of Sec61 translocon complex. Predicted to be active in endomembrane system. Is expressed in alimentary system; liver lobe; musculoskeletal system; and nasal capsule. Human ortholog(s) of this gene implicated in congenital disorder of glycosylation Iy. Orthologous to human SSR4 (signal sequence receptor subunit 4). [provided by Alliance of Genome Resources, Apr 2022]