As a Kekkei Genkai, sure, but you still need to remember that a Genin cannot start with more than one nature, two including the Kekkei Genkai. So you'll need to choose between Water and Wind chakras, which would be quite awesome since my Jounin in Kiri knows both :D

She actually has a Water technique which makes fairly solid water, not frozen though, but in a similair manner.

But yeah, Its acceptable. And don't forget: 4 D ranked jutsus and 2 C ranked ones are the max amount of starting jutsus for a genin. Includes both canon and custom jutsus.

Would be interesting to see, by the way. Its not used (Like, I haven't seen it) here.