Federal court jurisdiction

(a) In general Any contract or agreement, including a lease, affecting or arising on the Indian lands, or to which the Shivwits Band of Paiutes is a party, shall be considered within the meaning of commerce as defined in section 1 of title 9, United States Code. (b) Causes of action Any cause of action arising from any contract or agreement, including a lease, affecting or arising on the Indian lands, or to which the Shivwits Band of Paiutes is a party, shall be deemed to be a civil cause of action arising under the Constitution, laws, or treaties of the United States within the meaning of section 1331 of title 28, United States Code.