Predicted to enable GTP binding activity and GTPase activity. Is an ortholog of C. elegans arf-6 and warf-1. In C. elegans, arf-6 is involved in negative regulation of 1-phosphatidyl-1D-myo-inositol 4,5-bisphosphate biosynthetic process; positive regulation of 1-phosphatidyl-1D-myo-inositol 4,5-bisphosphate biosynthetic process; and positive regulation of endosome to plasma membrane protein transport.