Predicted to enable GTP binding activity and GTPase activity. Involved in establishment of mitochondrion localization by microtubule attachment; regulation of neurotransmitter secretion; and regulation of organelle transport along microtubule. Colocalizes with mitochondrion. Orthologous to human RHOT1 (ras homolog family member T1). [provided by Alliance of Genome Resources, Apr 2022]