Predicted to enable guanyl-nucleotide exchange factor activity and small GTPase binding activity. Predicted to be involved in several processes, including dendrite morphogenesis; retrograde trans-synaptic signaling by trans-synaptic protein complex; and synapse organization. Predicted to be located in cytosol and dendrite. Predicted to be extrinsic component of cytoplasmic side of plasma membrane. Is expressed in lung epithelium; nephron; nervous system; and retina. Orthologous to human FARP1 (FERM, ARH/RhoGEF and pleckstrin domain protein 1). [provided by Alliance of Genome Resources, Apr 2022]