One thing to consider, is that generally only the top 4 strings match that of a 6 string guitar in general, other than the EADGC tuning on a few basses out there. A typical 5 string bass is more like a 7 string Guitar in that the additional string compared to their counterparts is a low B. Essentially it's the same thing as tuning your E string up to G, and your A string down to G, leaving the D where it is.. leaving the G where it is. Heck.. tune the B string to D..
Some strings are going to feel too tight.. your A string might feel a little sloppy.
Me personally? I'd keep that thing in standard and just figure out my own bass lines in the appropriate key, or if you really like the band enough buy a bass to dedicate to that tuning. At the same time.. I would very quickly get bored of a bass tuned to GGDG and feel limited vs a bass tuned to 4ths. So maybe GCFA# OR.. on your 5 string DGCFA# Plan to keep it tuned that way.. and check your setup and intonation. Turning the strings higher will add tension, and might need you to tighten the truss rod a little bit to compensate for the added relief. might not affect it enough to matter, but, if I were playing different tunings, I tend to keep my basses setup to that tuning.
If you aren't used to playing in Dropped tunings DGCFA# will probably be easier to transition to.
I mean you're playing BEADG with standard tuned guitars right?
Also when you play with people use your ears, don't rely on watching other peoples fretboards.. play in any tuning you want as long as you're fretting within key.