Predicted to enable GTP binding activity and GTPase activity. Predicted to be involved in several processes, including Cdc42 protein signal transduction; positive regulation of cell migration involved in sprouting angiogenesis; and regulation of sprouting angiogenesis. Predicted to act upstream of or within several processes, including Rho protein signal transduction; regulation of cell shape; and retina vasculature morphogenesis in camera-type eye. Predicted to be located in plasma membrane. Orthologous to human RHOJ (ras homolog family member J). [provided by Alliance of Genome Resources, Apr 2022]