Predicted to enable calcium channel activity. Involved in calcium ion transmembrane transport and endoplasmic reticulum calcium ion homeostasis. Located in striated muscle dense body. Human ortholog(s) of this gene implicated in craniofacial dysmorphism, skeletal anomalies, and impaired intellectual development syndrome 1. Is an ortholog of human TMCO1 (transmembrane and coiled-coil domains 1).