Predicted to enable GTP binding activity; GTPase activity; and identical protein binding activity. Predicted to be involved in several processes, including Golgi organization; positive regulation of endoplasmic reticulum tubular network organization; and protein homooligomerization. Predicted to be located in endoplasmic reticulum tubular network membrane and exocytic vesicle. Predicted to be integral component of membrane. Human ortholog(s) of this gene implicated in hereditary sensory neuropathy type 1F. Orthologous to human ATL3 (atlastin GTPase 3). [provided by Alliance of Genome Resources, Apr 2022]