FZD8 (Frizzled Class Receptor 8): FZD8 is a gene that encodes a receptor for Wnt signaling proteins. It plays a crucial role in embryonic development and cell signaling pathways. FZD8 is essential for processes such as cell differentiation, proliferation, and polarity. Abnormalities in FZD8 signaling are linked to developmental defects and several types of cancer.