Predicted to enable GTP binding activity. Predicted to act upstream of or within regulation of T cell apoptotic process. Predicted to be located in Golgi apparatus; endoplasmic reticulum; and mitochondrion. Predicted to be active in cytosol. Orthologous to human GIMAP8 (GTPase, IMAP family member 8). [provided by Alliance of Genome Resources, Apr 2022]