The Insurance Department shall have the power and duty to supervise, examine, and regulate all corporations possessing the power to insure owners of real property, mortgagees, and others interested in real property from loss by reason of defective titles, liens, and encumbrances, to the same extent and in the same manner as such power and duty has heretofore been conferred and imposed by law upon the Department of Banking and the Secretary of Banking of this Commonwealth, and all powers, rights, privileges, and duties, heretofore by any law of this Commonwealth conferred or imposed upon the Secretary of Banking or the Department of Banking in relation to such corporations, are hereby transferred to, and conferred and imposed upon, the Insurance Department, but if any such corporation has the additional power to receive money for deposit or safe-keeping or to act as fiduciary or to engage in any other business under the supervision of the Department of Banking, the Insurance Department shall not have the power to supervise, examine, or regulate any part of the business of such corporation where such part of its business is under the supervision of the Department of Banking.