Component of a complex required to localize phosphatidylinositol 4-kinase (PI4K) to the plasma membrane (, ). The complex acts as a regulator of phosphatidylinositol 4-phosphate (PtdIns(4)P) synthesis (Probable). In the complex, plays a central role in bridging PI4KA to EFR3B and HYCC1, via direct interactions (By similarity).
Subcellular locations: Cytoplasm, Cell membrane
Localizes to the cytosol and is recruited to the plasma membrane following interaction with EFR3 (EFR3A or EFR3B).
Expressed in epithelial cells of the intestine, thymus, and pancreas (at protein level).