Final answer:
Plasmin's function is to digest fibrin during fibrinolysis, leading to the dissolution of blood clots and restoring normal blood circulation.
Step-by-step explanation:
The function of plasmin is the digestion of fibrin, which results in the dissolving of blood clots, a process known as fibrinolysis. Plasmin is generated from its inactive precursor, plasminogen. When activated, plasmin breaks down fibrin, the structural framework of blood clots, thereby helping to restore normal blood flow after vessel repair. This action is critically important in the process of clot removal, which not only involves the intrinsic pathway of coagulation but also the activation of various proteins, including plasminogen to plasmin.