Enables protein N-terminus binding activity. Predicted to be involved in several processes, including cytoskeleton organization; regulation of actin cytoskeleton organization; and regulation of cell shape. Predicted to act upstream of or within positive regulation of collateral sprouting. Located in early endosome. Orthologous to human RND2 (Rho family GTPase 2). [provided by Alliance of Genome Resources, Apr 2022]