Enables identical protein binding activity. Predicted to be involved in endoplasmic reticulum to Golgi vesicle-mediated transport. Predicted to be located in cytosol and intracellular membrane-bounded organelle. Predicted to be active in endoplasmic reticulum exit site. Is expressed in several structures, including branchial arch; limb; nasal process; and nervous system. Human ortholog(s) of this gene implicated in hereditary spastic paraplegia 57. Orthologous to human TFG (trafficking from ER to golgi regulator). [provided by Alliance of Genome Resources, Apr 2022]