The function of Ensembl gene identifier ENSG00000188729 (OSTN, osteocrin) is as follows. Hormone that acts as a regulator of dendritic growth in the developing cerebral cortex in response to sensory experience (PubMed:27830782). Induced in the brain following membrane depolarization and inhibits dendritic branching in neurons of the developing cortex (PubMed:27830782). Probably acts by binding to natriuretic peptide receptor NPR3/NPR-C, thereby preventing binding between NPR3/NPR-C and natriuretic peptides, leading to increase cGMP production (By similarity). {ECO:0000250|UniProtKB:P61364, ECO:0000269|PubMed:27830782}.