Predicted to enable GTPase binding activity and cardiolipin binding activity. Predicted to be involved in several processes, including inorganic cation transmembrane transport; positive regulation of cardiolipin metabolic process; and positive regulation of macromolecule metabolic process. Predicted to be located in membrane raft; mitochondrial inner membrane; and mitochondrial intermembrane space. Predicted to be extrinsic component of plasma membrane. Predicted to be part of COP9 signalosome. Predicted to colocalize with actin cytoskeleton and immunological synapse. Orthologous to human STOML2 (stomatin like 2). [provided by Alliance of Genome Resources, Apr 2022]