Predicted to enable protein kinase C binding activity. Acts upstream of or within toxin transport. Located in Golgi apparatus. Is expressed in several structures, including alimentary system; liver lobe; nervous system; olfactory epithelium; and retina. Used to study microcephaly. Human ortholog(s) of this gene implicated in primary autosomal recessive microcephaly 19. Orthologous to human COPB2 (COPI coat complex subunit beta 2). [provided by Alliance of Genome Resources, Apr 2022]