Together with gas2l2.S, regulates ciliary orientation and performance. Morpholino knockdown of both gas2l2.L and gas2l2.s resulted in mosaic embryos and impacted the number and distribution of basal bodies on the surface of ciliated cells (PubMed:30665704). As a result, ciliary orientation was significantly reduced (PubMed:30665704). Belongs to the GAS2 family. Due to the high similarity between gas2l2.L and gas2l2.S, the morpholinos used for knockdown target both gas2l2.L and gas2l2.S RNA.