Are Catholics permitted to honour Mary as a priest?

Mary, the Mother of Jesus was present at the foot of the Cross as her Son was dying in order to ransom mankind from sin. This got me thinking that Mary must hold a special place in Catholic devotion. As Catholic priests offer the sacrifice of Our Lord on the altar, could not Mary have offered her Son on the altar of the Cross for our salvation? I have been able to find a few pieces of religious art that shows the Virgin Mary dressed in priestly attire and I have included one here: My question is quite simple: Does the Catholic Church allow us to honor Mary under the title of the Virgin Priest and if so what are the directives on it from Rome?