Cleaves the alpha-chain at multiple sites and the beta-chain between 'Lys-53' and 'Lys-54' but not the gamma-chain of fibrinogen and therefore does not initiate the formation of the fibrin clot and does not cause the fibrinolysis directly (PubMed:11217080). It does not cleave (activate) prothrombin and plasminogen but converts the inactive single chain urinary plasminogen activator (pro-urokinase) to the active two chain form (PubMed:10754382, PubMed:11217080). Activates coagulation factor VII (Probable). May function as a tumor suppressor negatively regulating cell proliferation and cell migration (PubMed:26222560). {ECO:0000269|PubMed:10754382, ECO:0000269|PubMed:11217080, ECO:0000269|PubMed:26222560, ECO:0000305|PubMed:10754382}. This is the function of ENSG00000148702 (HABP2, hyaluronan binding protein 2).