Predicted to enable identical protein binding activity. Predicted to be involved in Golgi organization; Golgi vesicle prefusion complex stabilization; and retrograde vesicle-mediated transport, Golgi to endoplasmic reticulum. Predicted to act upstream of or within protein transport. Predicted to be located in Golgi apparatus and membrane. Predicted to be part of Golgi transport complex. Human ortholog(s) of this gene implicated in Saul-Wilson syndrome and congenital disorder of glycosylation type IIj. Orthologous to human COG4 (component of oligomeric golgi complex 4). [provided by Alliance of Genome Resources, Apr 2022]