Enables Rab geranylgeranyltransferase activity. Involved in endoplasmic reticulum to Golgi vesicle-mediated transport; protein geranylgeranylation; and protein targeting to membrane. Located in peroxisome. Part of Rab-protein geranylgeranyltransferase complex. Orthologous to human RABGGTA (Rab geranylgeranyltransferase subunit alpha).
SGD Description
Alpha subunit of Type II geranylgeranyltransferase; required for vesicular transport between the endoplasmic reticulum and the Golgi; provides a membrane attachment moiety to Rab-like proteins Ypt1p and Sec4p