Predicted to enable NAADP-sensitive calcium-release channel activity. Predicted to be involved in release of sequestered calcium ion into cytosol. Predicted to act upstream of or within inner ear auditory receptor cell differentiation; locomotory behavior; and sensory perception of sound. Predicted to be located in cytoplasm. Predicted to be active in lysosomal membrane and plasma membrane. Orthologous to human MCOLN3 (mucolipin TRP cation channel 3). [provided by Alliance of Genome Resources, Apr 2022]