How to update the value of a field in a column with value from another field only in specific conditions (context)?

I have file where I want to update the values in the first field of a specific column (say 1 and 2) when there is a context (pipe i.e |) in the 5th field of that column.

I can use python but that is going to be a long script. I am looking for a solution using awk (pefereable) else others are fine too that are short. Also I want to embed this within python script.

Below are two columns from my data with fields within column separate by (:).

0/1:42,19:61:99:0|1:5185_T_TTCTATC:560,0,1648       0/1:38,34:72:99:0|1:5185_T_TTCTATC:1145,0,1311

0/0:124,0,0:124:99:0,120,1800,120,1800,1800    0/0:165,0,0:165:99:0,120,1800,120,1800,1800

0/0:152,0:152:99:.:.:0,120,1800    0/1:145,34:179:99:0|1:5398_A_G:973,0,6088

So, when the 5th field in that column has '|' we update first field with 5th field value.

Expected result:

0|1:42,19:61:99:0|1:5185_T_TTCTATC:560,0,1648       0|1:38,34:72:99:0|1:5185_T_TTCTATC:1145,0,1311

0/0:124,0,0:124:99:0,120,1800,120,1800,1800    0/0:165,0,0:165:99:0,120,1800,120,1800,1800

0/0:152,0:152:99:.:.:0,120,1800    0|1:145,34:179:99:0|1:5398_A_G:973,0,6088

Thanks,