Enables growth hormone-releasing hormone receptor activity. Involved in G protein-coupled receptor signaling pathway; circadian rhythm; and negative regulation of cell population proliferation. Located in plasma membrane. Human ortholog(s) of this gene implicated in hypogonadotropic hypogonadism 7 with or without anosmia. Orthologous to human GNRHR (gonadotropin releasing hormone receptor). [provided by Alliance of Genome Resources, Apr 2022]