Predicted to be involved in negative regulation of autophagosome assembly; negative regulation of autophagosome maturation; and positive regulation of viral genome replication. Predicted to act upstream of or within autophagy. Predicted to be located in endoplasmic reticulum. Predicted to be integral component of membrane. Predicted to be active in endoplasmic reticulum membrane. Orthologous to human TMEM39A (transmembrane protein 39A). [provided by Alliance of Genome Resources, Apr 2022]