Enables acetylcholine receptor regulator activity. Involved in chaperone-mediated protein complex assembly and positive regulation of protein localization to cell surface. Predicted to be located in cytoplasmic vesicle; endoplasmic reticulum membrane; and peroxisomal membrane. Predicted to be integral component of membrane. Predicted to be active in endoplasmic reticulum. Orthologous to human TMEM35A (transmembrane protein 35A). [provided by Alliance of Genome Resources, Apr 2022]