May form complexes with phosphorylated ligands by interfering with kinases and their effectors (By similarity). Can substitute for TERMINAL FLOWER 1 (in vitro). Expressed in tissues surrounding vascular bundles in hypocotyl of 2-week-old plants. Plants do not show a phenotype similar to those of TERMINAL FLOWER 1 mutants. Belongs to the phosphatidylethanolamine-binding protein family.