Required for normal inner ear hair cell function and hearing. Widely expressed, with highest levels in the cochlea. In the cochlea, detected in spiral ganglion, the organ of Corti and stria vascularis. In the organ of Corti, prominently expressed in the outer and inner hair cells, especially at the apical and basal region of the outer hair cell body (at protein level). Belongs to the TMEM132 family. Artifactual sequence.