Yes. Scan listener is by design something like a load balancer in db tier.
However; in EBS it is a little different. By default, some apps components are configured to connect to some nodes only.. This is especially for chatty app modules.. It is in order to prevent cluster wait in chatty modules.
When we talk about Load Balancers in EBS , we need to talk about a big picture.. I mean the Load Balancers, Scan listeners, parallel concurrent processing and EBS configuration..
In this context, you can take EBS on Exadata configuration as a reference I have a subtitle about this in my book, Practical Oracle E-Business Suite ->
https://www.amazon.com/Practical-Oracle-Business-Suite-Implementation/dp/1484214234