Predicted to enable structural molecule activity. Predicted to be involved in endoplasmic reticulum to Golgi vesicle-mediated transport and intra-Golgi vesicle-mediated transport. Predicted to act upstream of or within protein transport. Located in COPI-coated vesicle and Golgi apparatus. Is expressed in sensory organ and skeleton. Orthologous to human COPB1 (COPI coat complex subunit beta 1). [provided by Alliance of Genome Resources, Apr 2022]