Automated description from the Alliance of Genome Resources (Release 7.0.0)
Enables brain-derived neurotrophic factor binding activity. Acts upstream of or within negative regulation of brain-derived neurotrophic factor receptor signaling pathway; negative regulation of collateral sprouting; and negative regulation of dendritic spine development. Located in secretory granule. Is expressed in medulla oblongata basal plate mantle layer; neural retina; olfactory cortex mantle layer; pons mantle layer; and telencephalon mantle layer. Orthologous to human FSTL4 (follistatin like 4).