Predicted to enable GTP binding activity and GTPase activity. Acts upstream of or within several processes, including cellular response to interferon-beta; cellular response to lipopolysaccharide; and defense response to other organism. Located in cytoplasmic vesicle and symbiont-containing vacuole membrane. Is expressed in several structures, including alimentary system; dorsal root ganglion; nasal cavity epithelium; vertebral axis musculature; and vibrissa. Orthologous to human GBP6 (guanylate binding protein family member 6). [provided by Alliance of Genome Resources, Apr 2022]