Predicted to be a structural constituent of cytoskeleton. Predicted to be involved in intermediate filament organization and regulation of chaperone-mediated autophagy. Located in cytoplasm and type III intermediate filament. Is expressed in several structures, including anterior neural keel; nervous system; neural tube; neuronal stem cell; and optic vesicle. Human ortholog(s) of this gene implicated in Alexander disease. Orthologous to human GFAP (glial fibrillary acidic protein).