Necessary for correct organization of Golgi apparatus. Involved in bone development.
Subcellular locations: Cytoplasm, Golgi apparatus, Membrane
Sequence analysis programs predict 1 transmembrane region. However, it has been shown in human that it is not a stably anchored transmembrane protein but it weakly associates with the Golgi apparatus and shuttles between the Golgi and the cytosol (By similarity).