Binds IGF1 and IGF2 with a relatively low affinity. Stimulates prostacyclin (PGI2) production. Stimulates cell adhesion. Acts as a ligand for CD93 to play a role in angiogenesis (PubMed:38218180). {ECO:0000269|PubMed:8117260, ECO:0000269|PubMed:8939990}. This is the function of IGFBP7 (insulin like growth factor binding protein 7, Ensembl gene identifier ENSG00000163453).