Subject to the terms of the policy or pursuant to an agreement between the insured, the group policyholder, and the insurer, any person insured under a group life insurance policy may make to any other person, other than the policyholder, an assignment of all or any part of the incidents of ownership conferred on him by the policy or by law, including specifically, but not by way of limitation, the right to exercise the conversion privilege and the right to name a beneficiary.