Predicted to enable 1-phosphatidylinositol-3-kinase activity; 1-phosphatidylinositol-4,5-bisphosphate 3-kinase activity; and 1-phosphatidylinositol-4-phosphate 3-kinase activity. Predicted to be involved in cell migration; intracellular signal transduction; and phosphatidylinositol-3-phosphate biosynthetic process. Predicted to act upstream of or within phosphatidylinositol phosphate biosynthetic process and phosphorylation. Predicted to be part of phosphatidylinositol 3-kinase complex, class IA and phosphatidylinositol 3-kinase complex, class IB. Predicted to be active in cytoplasm and plasma membrane.