This is the southern church (The St. Bissos one being the northern church). The church dates back to the fourth century according to Butler but Tchalenko considered it one of the churches of the fifth century according to the style of the its design and the existence of the porch on the roofs in front of the main entrance from the West side. I did not visit since people were living here, and getting there also seemed complicated.
On some pictures one can see a tower-like building supported by six columns south of the south basilica, whose function is unclear. Mostly it is referred to as a stylite, which hardly fits in with the architectural design; an interpretation as a (Venus) temple would be closer from the last point of view, but does not fit the time.