The validity of a transfer made in a manner prescribed in this chapter is not affected by:
A transfer made pursuant to § 55-10A-9, is irrevocable, and the custodial property is indefeasibly vested in the minor, but the custodian has all the rights, powers, duties and authority provided in this chapter and neither the minor nor the minor's legal representative has any right, power, duty or authority with respect to the custodial property except as provided in this chapter.
By making a transfer, the transferor incorporates in the disposition all the provisions of this chapter and grants to the custodian, and to any third person dealing with a person designated as custodian, the respective powers, rights and immunities provided in this chapter.
SDCL 55-10A-13