The Age field in Sphere doesn't have the same format as the Age field in Raisers Edge, so this field doesn't come through the Connector by default and there is not a way to add additional mapping to make it come across in a different way.

However, the Birthdate field will come over the Connector from Raisers Edge to Sphere. Once the Birthdate field is added to the Raisers Edge record the Age field in Raisers Edge will automatically be calculated.  So Organizations can use the Birthdate field on their forms and events if they need the Age field to be present on the Raisers Edge records created or updated from processing the information coming through the Connector from Sphere to Raisers Edge.