Is predicted to encode a protein with the following domains: Ancestral coatomer element 1, Sec16/Sec31; Vesicle coat trafficking protein Sec16 mid-region; Sec16, central conserved domain; and Sec23-binding domain of Sec16. Is an ortholog of C. elegans sec-16A.1. In C. elegans, sec-16A.1 is involved in endoplasmic reticulum to Golgi vesicle-mediated transport and protein localization to endoplasmic reticulum exit site.