Predicted to enable substance K receptor activity. Involved in regulation of uterine smooth muscle contraction. Predicted to be located in membrane; sperm flagellum; and sperm head. Predicted to be active in plasma membrane and sperm midpiece. Is expressed in adrenal gland. Human ortholog(s) of this gene implicated in asthma. Orthologous to human TACR2 (tachykinin receptor 2). [provided by Alliance of Genome Resources, Apr 2022]