Lagering is done un-carbonated. The beer is left to clear in a cold (close to 0C) room for a few months.
So, no, you can't lager a carbonated beer in bottles.
BUT: you can bottle condition, and afterwards leave the beers for a few months in a cold area to allow the particles to settle out (what happens in the lagering process). The difference is that, after "real" lagering a clear beer is bottled and there will be very little to no sediment in the bottle. Your bottle conditioned beer will have sediment in the bottle.
The cold conditions help speed up the clarification process.
Considering that lagers tend to be "delicate" beers, you do not want to age them too long in a warm area.