Predicted to be involved in endoplasmic reticulum to Golgi vesicle-mediated transport. Predicted to act upstream of or within vesicle-mediated transport. Predicted to be located in endomembrane system; endoplasmic reticulum-Golgi intermediate compartment; and perinuclear region of cytoplasm. Predicted to be part of TRAPP complex. Predicted to be active in cytoplasm and nucleus. Human ortholog(s) of this gene implicated in X-linked spondyloepiphyseal dysplasia tarda. Orthologous to several human genes including TRAPPC2 (trafficking protein particle complex subunit 2).