Secreted frizzled-related protein 3 (FRZB)

Soluble frizzled-related proteins (sFRPS) function as modulators of Wnt signaling through direct interaction with Wnts. They have a role in regulating cell growth and differentiation in particular cell types.

SFRP3/FRZB seems to be involved in limb skeletogenesis. Antagonist of Wnt8 signaling.