Acts upstream of or within otolith morphogenesis. Predicted to be located in cytoplasmic vesicle and plasma membrane. Predicted to be integral component of membrane. Is expressed in several structures, including branchial arch; central nervous system; embryo mesenchyme; pancreas tip epithelium; and sensory organ. Orthologous to human LRIG3 (leucine rich repeats and immunoglobulin like domains 3). [provided by Alliance of Genome Resources, Apr 2022]