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Fzd5, is the receptor for the Wnt5A ligand. Fzd5 modulates cell fate and cell behavior during vertebrate development. It regulates hematopoiesis by the antagonism of the canonical Wnt pathway, resulting in a pool of quiescent hematopoietic stem cells, and regulates hematopoietic stem cell function in a paracrine fashion through several distinct mechanisms including modulating canonical Wnt signaling. It acts through noncanonical Wnt signaling to promote angiogenesis. It is also involved in control cell orientation, polarity, and directional movement in response to positional cues from chemokine gradients.