Enables protein kinase C binding activity. Predicted to be involved in Golgi vesicle transport and intracellular protein transport. Predicted to act upstream of or within toxin transport. Located in Golgi membrane. 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]