Cytoskeletal linker protein. May promote and stabilize the formation of the actin and microtubule network (By similarity). Interacts (via CH domain) with F-actin (By similarity). Interacts (via C terminus) with microtubules (By similarity). Interacts with MAPRE1 (PubMed:24706950). Localizes to microtubule and actin cytoskeletons. The GAR domain modulates the binding strength to each cytoskeletal network. Belongs to the GAS2 family. It is uncertain whether Met-1 or Met-3 is the initiator.