Unc-115/AbLIM is a key regulator of lamellipodia and filopodia in the growth cone during axon pathfinding and acts downstream of Rac GTPase signaling. It acts as a scaffold to recruit other actin-modulating complexes involved in lamellipodia and filopodia. Unc-115/AbLIM is locally recruited to the plasma membrane by activated Rac1 and subsequently dephosphorylated on serine 617. Dephosphorylated Unc-115/AbLIM then might interact with other molecules at the plasma membrane to induce formation of lamellipodia and filopodia by reorganization of the actin cytoskeleton.