Rae, without a club since being releaed by City, has continued to train with the squad and played an hour last night in central midfield.
City took the lead through Jordan Carter after three minutes before Port Talbot scored twice to lead at half time.
Triallist Adam Smith levelled for City midway through the 2nd half.
Steve McPhail had hoped to take part in the game but as he's only just returned to full training he was not risked.
Port Talbot Town: K Rogers, D Brooks, P Keddle, K Edwards, P Cochlin, M Crowley, G Phillips, D Blain, C Belle, L John, C Hartland. Subs used: L De Vulgt, M Thompson, N Holland, R Evans, S Walters, G Jeffries
Cardiff City: J Santiago, A Oshilala, J Powell (A Smith 65), J Ralls, A Evans, B Nugent (Y Drais 73), J Darko (K Sainte Luce 65), G Rae (L Prosser 65), N Jarvis, I Farah (capt), J Carter (M Diallo 73). Subs not used: D Richards