Predicted to enable calcium channel activity and ribosome binding activity. Predicted to be involved in ER overload response; calcium ion transmembrane transport; and endoplasmic reticulum calcium ion homeostasis. Predicted to be integral component of endoplasmic reticulum membrane. Predicted to be active in endoplasmic reticulum. Orthologous to human TMCO1 (transmembrane and coiled-coil domains 1). [provided by Alliance of Genome Resources, Apr 2022]