Required for maintaining the proliferative activity of embryonic cardiomyocytes by preventing premature activation of the negative cell cycle regulator CDKN1C/p57KIP and maintaining the required expression levels of cardiogenic factors such as MEF2C and NKX2-5. Acts as a ligand for ACVRL1/ALK1, BMPR1A/ALK3 and BMPR1B/ALK6, leading to activation of SMAD1, SMAD5 and SMAD8 transcription factors. Inhibits endothelial cell migration and growth. May reduce cell migration and cell matrix adhesion in breast cancer cell lines. Homodimer; disulfide-linked (By similarity). Interacts with FBN1 (via N-terminal domain) and FBN2 (PubMed:18339631). Interacts with ENG (PubMed:21737454). Detected in mammary epithelia (at protein level). Down-regulated in some breast cancer subtypes and breast cancer cell lines. Belongs to the TGF-beta family. Bone morphogenetic protein 10 entry