Predicted to enable SNARE binding activity and zinc ion binding activity. Acts upstream of or within several processes, including animal organ development; artery morphogenesis; and regulation of cargo loading into COPII-coated vesicle. Part of COPII vesicle coat. Is expressed in cochlear duct and embryo. Orthologous to human SEC24B (SEC24 homolog B, COPII coat complex component). [provided by Alliance of Genome Resources, Apr 2022]