Predicted to enable several functions, including GTP binding activity; GTPase activity; and kinase inhibitor activity. Involved in T cell differentiation and mast cell activation. Located in cytoplasm and immunological synapse. Is expressed in cranial ganglion; dorsal root ganglion; and sensory organ. Human ortholog(s) of this gene implicated in epidermodysplasia verruciformis. Orthologous to human RHOH (ras homolog family member H). [provided by Alliance of Genome Resources, Apr 2022]