I would say yes, for a several reasons, but I would also note that it is subject to interpretation. The ability to make a motion implies "voice," since motions are normally spoken by the maker. A main motion made by a nonmember would only be subject to a timely point of order, while a nonmember voting would be a continuing breach (though not necessarily invalidating the motion). RONR, does permit some situations where a a nonmember presiding office can make motions (i.e. setting aside the orders of the day, Objection To the Consideration of the Question). I think p. 572 #6 would apply, but it would still be a question of interpretation.