The director may receive on behalf of the department any money or real or personal property donated, bequeathed, devised, or conditionally granted to the department. Such moneys received directly or derived from the sale of such property shall be deposited in an account in the agency asset fund to be known as the fish and game expendable trust account, which is hereby established. Moneys in the account may be appropriated to carry out the terms or conditions of such donation, bequest, devise, or grant, or in the absence of such terms or conditions, may be appropriated to the commission to expend, use, and administer such funds as advisable in the public interest and in accordance with the policies set forth in the Idaho fish and game code, and shall be used for no other purpose.