Acts upstream of or within several processes, including cellular protein modification process; collagen fibril organization; and collagen metabolic process. Predicted to be located in Golgi apparatus and endosome. Predicted to be active in cytoplasm. Is expressed in several structures, including central nervous system; retina layer; and skeletal muscle. Used to study ARC syndrome. Human ortholog(s) of this gene implicated in arthrogryposis, renal dysfunction, and cholestasis 2. Orthologous to human VIPAS39 (VPS33B interacting protein, apical-basolateral polarity regulator, spe-39 homolog). [provided by Alliance of Genome Resources, Apr 2022]