The function of CSF3 (colony stimulating factor 3, Ensembl gene identifier ENSG00000108342) is as follows. Granulocyte/macrophage colony-stimulating factors are cytokines that act in hematopoiesis by controlling the production, differentiation, and function of 2 related white cell populations of the blood, the granulocytes and the monocytes-macrophages. This CSF induces granulocytes.