Priesthood Power and Authority Exercised by Women 

"Every woman and every man who makes covenants with God and keeps those covenants, and who participates worthily in priesthood ordinances, has direct access to the power of God. Those who are endowed in the house of the Lord receive a gift of God’s priesthood power by virtue of their covenant, along with a gift of knowledge to know how to draw upon that power." - President Russell M. Nelson

"When a woman—young or old—is set apart to preach the gospel as a full-time missionary, she is given priesthood authority to perform a priesthood function. The same is true when a woman is set apart to function as an officer or teacher in a Church organization under the direction of one who holds the keys of the priesthood. Whoever functions in an office or calling received from one who holds priesthood keys exercises priesthood authority in performing her or his assigned duties." - President Dallin H. Oaks