Component of the TRAPP complex, which is involved in endoplasmic reticulum to Golgi apparatus trafficking at a very early stage (, ). Also plays a role in chromosome congression, kinetochore assembly and stability and controls the recruitment of CENPE to the kinetochores .
Subcellular locations: Endoplasmic reticulum-Golgi intermediate compartment, Nucleus
Mainly localizes to structures resembling the Golgi and a small amount is found in the nucleus.