Predicted to enable small GTPase binding activity. Predicted to be involved in endocytosis; regulation of catalytic activity; and signal transduction. Predicted to act upstream of or within associative learning; memory; and negative regulation of synaptic plasticity. Predicted to be located in several cellular components, including dendrite; neuronal cell body; and plasma membrane. Orthologous to human RIN1 (Ras and Rab interactor 1). [provided by Alliance of Genome Resources, Apr 2022]