Predicted to enable cytokine binding activity and protein homodimerization activity. Involved in several processes, including hippocampus development; learning or memory; and regulation of gliogenesis. Located in axon and extracellular space. Part of protein-containing complex. Biomarker of acute kidney tubular necrosis and type 2 diabetes mellitus. Human ortholog(s) of this gene implicated in Huntington's disease; cleft lip; dysostosis (multiple); hyperopia; and proximal symphalangism (multiple). Orthologous to human NOG (noggin). [provided by Alliance of Genome Resources, Apr 2022]