Essential for development and viability. Required for ovary development and oogenesis, and is essential for the development of the indirect flight muscles. May act as a negative regulator of the Notch signaling pathway in certain tissues, such as the muscle precursors and ovaries. May function as a linker protein between the actin and microtubule cytoskeletons. In the cytoskeleton associates with both actin and the microtubules. Expressed in the ovary and the ring canals of the germline cells. In larvae, expressed in the notal region of the wing disk. Named 'Picked eggs' based upon the mutant ovary phenotype. Belongs to the GAS2 family. Truncated N-terminus.