a protein of the phosphoinositide 3-kinase (PI3K) family. PI3-kinases play roles in signaling pathways involved in cell proliferation, oncogenic transformation, cell survival, cell migration, and intracellular protein trafficking. This protein contains a lipid kinase catalytic domain as well as a C-terminal C2 domain, a characteristic of class II PI3-kinases. C2 domains act as calcium-dependent phospholipid binding motifs that mediate translocation of proteins to membranes, and may also mediate protein-protein interactions. Its PI3-kinase is not sensitive to nanomolar levels of the inhibitor wortmannin. Activated by insulin and may be involved in integrin-dependent signaling. Note: This description may include information from UniProtKB.